A labor statisticlan claims that 6% of the labor forces will be laid off likely to pandemic impact. In a random sample of 547 employees, 44 of them will be likely to be laid off. Whot ie the ohiliti f the

There is a 75% chance that those who are called will serve on jury duty.  If 12 people are called for jury duty, what is the probabilty that none of the people will serve on the jury?

A hypothesis test is conducted to determine whether the percentage of US adults that think marijuana should be illegal is less than 40%.  A random sample of 400 US adults includes 144 that think marijuana should be illegal.   The value of the test statistic is -1.63 Find the P-value of the hypothesis test

A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 3% margin of error at a 99% confidence level, what is the minimum sample size needed for the study?Give your answer as a whole number.

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hat are the goals of random sampling? Can these goals be accomplished by randomizing participants instead? Why or why not? What are the goals of randomizing participants? Can these goals be accomplished by taking a random sample instead? Why or why not?

Previously, 43% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 144 of 300 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science do parents feel different today? Use the = 0.1 level of significance. what are the Null and alternative hypothesis?   use technology to find the P value. P value =_. (round to three decimal places as needed.$   should one reject the null hypothesis? or should one not reject the null hypothesis?

online customer service is a key element to successful online retailing. According to a marketing survey, 37.5% of online customers take advantage of online customer service. Random samples of 150 customers are selected. The standard error of all possible sample proportion is?